Trolley-head.



W. H. PFRIMMER.

TROLLEY HEAD. APPLICATION FILED NOV. 2, 190's Z4 am; I 19 25 7f zllmfizfifiimmzez' Witnesses Z0 1 I Inventor. g 11/! 1 y 1 Attorneys UNITED STATES PATENT QI FIQE. WILLIAM H. PFRIMMER, or NEW ALBANY, INDIANA, ASSIGNOR or ONE- SIXTH TO JAcoB W. ROBERTS AND ONE-SIXTH TO DAvID E. ONES,

OF NEW ALBANY, INDIANA.

TROLLEY-HEADA Specification of Letters Patent.

Patented Sept. 18, 1906.

T0 atl whom it may concern.-

Be it known that I, WILLIAM H. PFRIM- MER, a citizen of the United States, residing at New Albany, in the county of Floyd and State of Indiana, have invented a new and useful Trolley-Head, of which the following is a specification.

This invention relates to trolley-heads, and

has for an object to provide a trolley-head embodying new and improved features of convenience, reliability, economy, and efficiency.

A further object of the invention is to provide a head having replacer-arms which are automatically thrown into operative position by a pull upon the trolley-rope and embodying means whereby the head may be drawn down by the rope without operating the arms.

A further object of the invention is to pro vide a trolley head embodying disks or guard extending over and above the conductor and normally held in such position by the replacer-arms, said disks or guards being so arranged that when the head is drawn down and the arms moved to operative position the latter Will pass between and separate the disks.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size,- and minor details may be made without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a perspective view of the improved trolley-head. Fig. 2 is a view of the trolley-head in end elevation as along arrow 2 in Fig. 1 and with the replacer-arms thrown into operative position and the disks separated thereby.

Like characters of reference indicate corresponding parts in both of the figures of the drawings.

In its preferred embodiment the improved trolley-head forming the subject-matter of this application comprises the shank 10, which may be integral with or secured to the usual trolley-pole in any approved manner and having its end bifurcated to form the ears 11. Between the ears is journaled the ordinary grooved trolley-wheel 12, and upon opposite sides are secured the springs 13,

having their free extremities bent at an angle,

as at 14. Upon the inclined ends 14 are journaled the disks 15, normally reversely inclined above the wheel and overhead conductor, as shown in Fig. 1 and in dotted lines in Fig. 2.

, To the axle 16 of the wheel are pivoted the levers 17, carrying the replacer-arms 18 and connected by a depending U-shaped yoke 19, embracing the shank 10 and to which is con nected a spring 20 to hold the arms normally out of operative position. To one side of the yoke is secured the bar 21, extending upon opposite sides of the axle 16 and having the loop-like seats 22 and 23 to accommodate a ring 24, to which is attached the usual trolleyrope 25.

In operation the disks 15 normally extend over'the wheel 12 and the conductor to any approved distance and are held in position by the levers 17 engaging and bearing against the spring 13, but having suflicient resiliency to pass connections of all kinds. The ring 24 is normally seated in the loop 22, and when the trolley leaves the wire or when the head is drawn down, as indicated by the arrow, the levers 17 are swung on their pivotal axis, and with them the arms 18, as indicated, thus releasing the springs and causing the arms to pass'between and separate the disks, as indicated in Fig. 2, whereby the conductor may be again engaged by the trolley-wheel.

If it is desired to draw down the head without the headarid adapted to pass between and separate the guards and means for actuating the guard-separating means.

2. A trolley-head embodying a trolleywheel, springs carried upon opposite sides of the head, disks journaled upon the springs and extending over the wheel, replacer-arms pivoted to the head and arranged to pass between and separate the disks, and means for operating .the arms.

3. A trolley-head embodying a trolley wheel, springs carried upon opposite sides of the head, disks journaled upon the springs, replacer-arms pivoted to the head and nor mally engaging the springs to hold the disks with their peripheries extending over the wheel, and means for actuating the arms to separate the disks.

4. A trolley-head embodying a trolleywheel, reversely-inclined guards extending over the wheel, replacer-arms pivotally mounted on the head and arranged to hold the guards in juxtaposition and means for actuating the arms to separate the guards.

5. A trolley-head having replacer-arms pivoted thereon, a spring for holding the arms normally out of operative position, a bar secured to the arms and extending beyondthe pivotal axis of the latter, and a cord slidably mounted on the bar and movable to opposite sides of said pivotal axis.

6. A trolley-head having revers'ely-inclined guards extended above the conductor, replacer-arms pivotally mounted on the trolley-head, and means whereby when the head is lowered the arms are actuated to pass between andseparate the guards, said means being adjustable longitudinally of the arms thereby to permit the head to be lowered without affecting said arms.

7. A trolley-head having reversely-inclined guards extending over the conductor replacer-arms pivotally mounted on the head and arranged to hold the guards normally in juxtaposition, and means whereby when the head is drawn down the arms are actuated to passzbetween and separate the guards, said 'means being adjustable longitudinally whereby the head may be lowered without affecting the arms.

8. A trolley-head having springs secured to opposite sides thereof, guards journaled upon the springs, replacer-arms pivotally mounted on the head and arranged to engage the springs for holding the disks normally in juxtaposition with their peripheral edges ex tending over the conductor, and means whereby when the head is drawn down the.

arms are actuated to pass between and separate the guards, said means being adjustable longitudinally of the arms whereby the head may be lowered without affecting said arms.

9. A trolley-head having springs secured to the opposite sides thereof, guards jour able longitudinally of the arms whereby the head may be lowered without affecting said arms. 7

10. A trolley-head having springs secured to the opposite sides thereof, guards journaled upon the springs, replacer-arms pivotally mounted on the head and arranged to engage the springs to hold the guards normally in juxtaposition with their peripheral edges extending over the conductor, a bar secured to the arms and extending'beyond the pivotal axis of the latter, and a cord slidably mounted on the bar for actuating the arms to separate the guards.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

WILLIAM H. PFRIlVMER.

Witnesses:

RAYMOND J. MORRIS, CLAUDE A. SETTASON. 

